Exergoeconomic performance comparison of R1234yf as a drop-in replacement for R134a in a domestic refrigerator

Rangel-Hernández, V.H.; Belman-Flores, J.M.; Rodríguez-Valderrama, D.A.; Pardo-Cely, Diana Marcela; Rodríguez-Muñoz, A.P.; Ramírez-Minguela, J.J.

doi:10.1016/j.ijrefrig.2019.01.016

Cited by 24 publications

(9 citation statements)

References 21 publications

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“…The R407F also shows a COP higher than the R404A. Both refrigerants contain R32 (A2L) and R125 (A1) mixed in the same mass percentage as the A1 class of refrigerants mix [21].…”

Section: Evolution Of the Refrigerantmentioning

confidence: 96%

“…Both refrigerants use polyol ester oil (POE), are Class A1 incombustible ( Figure 6), and has a lower toxicity. The R448A has a higher cooling capacity (Qe) than the R404A as it is composed of the hydrofluorocarbons (HFCs) R32 [6,21,23] and has a lower global warming potential (GWP) than the R404A, which is composed of hydrofluoroolefins (HFOs) by R1234yf and R1234ze (E) [24][25]. The result show a decrease in the global warming potential by 70%, and a COP higher than R404A [26], as shown in Figure 7 [27].…”

Section: R448a Refrigerantmentioning

confidence: 98%

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The Replacement of the R404A Refrigeration System with The Environmentally Friendly R448A, to Improve Convenience Store Energy Efficiency in Thailand

Saengsikhiao¹,

Taweekun²,

Maliwan³

et al. 2020

ARFMTS

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This study presents the energy saving characteristics of the R448A, instead of the R404A refrigeration system, in 5 convenience stores, with a total of 150 m 2 , situated in Central Thailand. The R448A hydrofluorocarbons/hydrofluoroolefins (HFCs/HFOs) (GWP=1390) is a non-azeotropic mixture of R32 (26%), R125 (26%), R1234yf (20%), R134a (21%) and R1234ze (E) (7%), which can be retrofitted to replace the R404A refrigeration system. The R404A hydrofluorocarbons (HFCs) (GWP=3735) is a near azeotropic mixture of R125 (44%), R143A (52%), R134A (4%). Both refrigerants are composed of polyol ester oil (POE), are incombustible and non-toxic. The R448A has a higher cooling capacity (Qe) and lower global warming potentials (GWP) than the R404A due to its hydrofluorocarbons (HFCs) R32 component and hydrofluoroolefins (HFOs) R1234yf/R1234ze (E) component, as opposed to the R404A. This was determined by measuring power consumption (kWh) and the ambient temperature (°C) through the use of power meters and temperature data logger respectively. The result obtained was able to summarize the relationship of all the parameters concerned, and showed an energy-saving average of 7.9%, i.e. 28,273 kWh/year per 5 stores, and a decreased global warming potential (GWP) of 70%, through the use of a digital scroll compressor.

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“…The R407F also shows a COP higher than the R404A. Both refrigerants contain R32 (A2L) and R125 (A1) mixed in the same mass percentage as the A1 class of refrigerants mix [21].…”

Section: Evolution Of the Refrigerantmentioning

confidence: 96%

Section: R448a Refrigerantmentioning

confidence: 98%

The Replacement of the R404A Refrigeration System with The Environmentally Friendly R448A, to Improve Convenience Store Energy Efficiency in Thailand

Saengsikhiao¹,

Taweekun²,

Maliwan³

et al. 2020

ARFMTS

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“…The R1234ze and R1234yf are categorized as Class A2L with a low GWP, which is an alternative for R134A. and not for because the performance of R134A, R1234yf and R1234ze were similar [15][16][17]. Therefore, fourth generation refrigerants; R407A, R407F, R407H, R410A, R448A, R449A, R442A, R453A, and R463A, are refrigerants mixed with HFC, HFO, HC.…”

Section: Evolution Of the Refrigerantmentioning

confidence: 99%

The Performance Simulation of The New R463A HFC/HFO/Carbon Dioxide Refrigerant with Lower GWP, As an Alternate Option for The R404A Refrigeration System

Saengsikhiao

Taweekun

Maliwan

et al. 2020

ARFMTS

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This study presents the performance simulation of the R463A that has been developed to be retrofitted to replace the R404A. The R463A is primarily composed of hydrofluorocarbons/hydrocarbon/carbon dioxide (HFCs/HCs/CO2). The R463A refrigerant (GWP=1494) is a non azeotropic mixture of R32 (36%), R125 (30%), R134a (14%), R1234yf (14%), and R744 (6%). It is composed of polyol ester oil (POE), and classified as a Class A1 incombustible and non-toxic refrigerant. The R463A has a higher cooling capacity (Qe) than the R404A, as it is composed of hydrofluorocarbons (HFCs) R32 and carbon dioxide (CO2) R744, and also has a lower global warming potential (GWP) than the R404A due to the hydrofluoroolefins (HFOs) by R1234yf. The properties of the R463A and R404A that uses the REFPROP and CYCLE_D-HX software, is in accordance to the CAN/ANSI/AHRI540 standard airconditioning , heating, and refrigeration institute (AHRI). The normal boiling point of the R463A was found to be higher than the R404A by 23%, with a higher cooling capacity and a lower GWP value by 63% than the R404A. The critical pressure and temperature of the R463A was found to be higher than the R404A, i.e. it can be used in a high ambient temperature environment, and emits a higher refrigerant effect and heat reject with a lower global warming potential (GWP) than the R404A by 52%, due to its hydrofluoroolefins (HFOs) by R1234yf component. The COP of the R463A was found to be higher than the R404A by 10% under low temperature application.

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“…They used two refrigerants, R134a and R1234yf, separately in the refrigerator-freezer, and exergy and exergoeconomic parameters were considered as comparative indicators. 8 Azhar and Altamush Siddiqui analyzed the comprehensive exergy of the parallel dual absorption refrigeration cycle using lithium bromide water as the working fluid. In addition, the parallel current was compared with the serial current for the same operational parameter.…”

Section: Introductionmentioning

confidence: 99%

Exergy and exergoeconomic analyses of serial and bypass two-stage compression on the household refrigerator-freezer and replacement of R436A refrigerant

Alihosseini

Salehi

Lavasani

2021

Proceedings of the Institution of Mechanical Engineers, Part A:

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In this research, the performance of serial two-stage compression (STC) cycle and bypass two-stage compression (BTC) cycle on the household refrigerator-freezers is tested in the laboratory. Then, based on the results of the experiments, exergy, exergoeconomic analyses, and cycle optimization are carried out. Considering that replacing refrigerants in household refrigerator-freezers is one of the approaches to increase the performance and environmental impact of these systems, R436A refrigerant (46% Isobutene and 54% Propane mixture) is used and analyzed to replace previous refrigerants. Finally, the multi-objective optimization of the mentioned cycles is performed with both refrigerants. For analyses, two models of refrigerator-freezers with different cycles are used (STC cycle with R134a refrigerant and BTC cycle with R-600a refrigerant). In both models, two evaporators for refrigerator-freezer compartments are used. International standards (IEC 62552) are used to test refrigerator-freezers. MATLAB and REFPROP 9.1 software are used to model the systems. According to the results of the analyses, the STC cycle with R436A refrigerant has more total exergy destruction rate (0.727 kW) compared to R134a refrigerant. In the BTC cycle, in which the fresh food compartment (FFC) and freezer compartment (FZC) operate, the total exergy destruction rate with R-600a refrigerant (0.422 kW) is less than with R436A refrigerant. In the case of the BTC cycle in which only the FZC operates, the total exergy destruction rate with R-600a refrigerant (0.455 kW) is less than with R436A refrigerant. The most exergoeconomic factor among cycle equipment is related to the compressor (about 98%). The highest COP value between cycles is related to the STC cycle with R134a refrigerant.

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Exergoeconomic performance comparison of R1234yf as a drop-in replacement for R134a in a domestic refrigerator

Cited by 24 publications

References 21 publications

The Replacement of the R404A Refrigeration System with The Environmentally Friendly R448A, to Improve Convenience Store Energy Efficiency in Thailand

The Replacement of the R404A Refrigeration System with The Environmentally Friendly R448A, to Improve Convenience Store Energy Efficiency in Thailand

The Performance Simulation of The New R463A HFC/HFO/Carbon Dioxide Refrigerant with Lower GWP, As an Alternate Option for The R404A Refrigeration System

Exergy and exergoeconomic analyses of serial and bypass two-stage compression on the household refrigerator-freezer and replacement of R436A refrigerant

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